As far as I know, the kernel threads project got aborted. Apparently
there are memory locking problems that would require a lot of work, and
nobody (who would know what to do) is willing to tackle it.
> 1) A while ago, Linus passed a code snippet around which showed how to
> start up a new thread in user space. Has anyone improved upon this?
> Or is it what everyone is using still?
I also grabbed it and tried to use it in a program I was working on, but
it was prone to causing kernel panics, so I kind of decided to stop. :)
There must have been only a small handful of us who tried it, because I
posted about the problem a few months ago and nobody seemed to know what
I was talking about. I only got the one reply that basically said "We
know there's a problem but we've decided it's not worth fixing."
Granted, I haven't tested it in several months... But I haven't seen any-
thing in the kernel patch announcements about it, and there's a dark rumour
floating around that the clone() system call was disabled in recent kernels.
I guess your best bet would be pthreads, but I don't know anything about
that, so I'll leave it for someone else to answer.
Robey